215203064 has 16 divisors (see below), whose sum is σ = 408368520. Its totient is φ = 106304800.

The previous prime is 215203061. The next prime is 215203067. The reversal of 215203064 is 460302512.

It is an interprime number because it is at equal distance from previous prime (215203061) and next prime (215203067).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215203061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 161387 + ... + 162714.

Almost surely, 2^215203064 is an apocalyptic number.

It is an amenable number.

215203064 is a deficient number, since it is larger than the sum of its proper divisors (193165456).

215203064 is a wasteful number, since it uses less digits than its factorization.

215203064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324190 (or 324186 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 215203064 is about 14669.8010893127. The cubic root of 215203064 is about 599.2611869284.

Adding to 215203064 its reverse (460302512), we get a palindrome (675505576).

The spelling of 215203064 in words is "two hundred fifteen million, two hundred three thousand, sixty-four".